选择性氧化脱除甲醇重整氢源中CO的研究  

CO REMOVAL IN HYDROGEN-RICH GAS FROM METHANOL REFORMING

作　　者：周帅林[1] 袁中山[1] 王树东[1] 

机构地区：[1]中国科学院大连化学物理研究所,辽宁大连116023

出　　处：《化工学报》2004年第S1期54-59,共6页CIESC Journal

基　　金：国家重点基础研究资助项目(No.G2000026401)

摘　　要：微量CO会使质子交换膜燃料电池(PEMFC)的PtRu/C电极中毒,从而降低燃料电池的性能。本文研究了堇青石蜂窝陶瓷基体涂覆Al_2O_3载体担载Pt、Pd、Ru、Rh等活性组分选择性氧化脱除甲醇重整气中CO的性能,同时研究了Cu、Fe、Sn、Co、La、Ce、Zr等助剂对催化剂性能的影响。结果显示Pt/Al_2O_3整体催化剂能够有效地脱除重整气中的CO,助剂Cu、Fe、Sn、Co的加入使得反应的温度区间向低温移动,其中Co的加入明显提高了CO的转化率和选择性。Small amount of CO in the H_2-rich reformate gas can poison the Pt/Ru anode electrode catalyst of PEMFC and dramatically reduces the power output. The tolerable level of CO is less than 0.01% (volume). In this paper, the performances of several Al_2O_3 supported Pt, Pd, Ru, Rh monolithic catalysts were investigated. The results showed that Pt/Al_2O_3 was the promising catalyst, which can selectively oxidize 1%(volume) CO in the reformate to less than 0.01%(volume). The effects of promoters, including Cu, Fe...

关 键 词：重整 燃料电池 选择性氧化 整体催化剂 助剂 

分 类 号：TQ116.2[化学工程—无机化工]